iOS and Windows Phone devices may be limited to a single package provider, but Android devices are not. I've had more than one store on my Android phones and ta

iOS and Windows Phone devices may be limited to a single package provider, but Android devices are not. I've had more than one store on my Android phones and tablets for over five years now. And, yes, I'd love it if there were a standard way to include signing keys for additional stores so that installations were seamless, that's not a significant problem in practice.